re: Training in hot temps (like Hot Worx) or cold temps: Which burns more calories?

If you’ve ever worked out at Red’s in Lafayette, you’ll notice it’s on the colder side.
Buddy of mine used to work there and said they kept it that way because ole Red said the colder temp ramped up your metabolism better.

Think about it, when it’s hot as hell outside and you’re having to do some manual work outside, it doesn’t take long for your energy/strength to decrease.